Slate cutter and punch



July 4, 1939. PARSONS ET AL 2,164,688

SLATE CUTTER AND PUNCH Filed NOV. 18, 1937 Incas farsons 53a INVENTORSnZey Jckzvor s Y E N R O T T A WITNESS Patented July 4, 1939 UNITEDSTATES PATENT OFFICE SLATE CUTTER AND PUNCH Application November 18,1937, Serial No. 175,316

3 Claims.

This invention relates to cutting tools especially adapted for severingsheet-like materials such as tile, slate or composition shingles and hasfor the primary object the provision of a portable,

efficient and inexpensive device of this character which may be easilycarried by a workman and set up for use to cut material to a selectedsize and shape and embodies a construction which permits cuttingoperations to be carried out with breakage and waste of the materialreduced to a minimum and also may be employed for punching holes in thematerial.

With these and other objects in View, this invention consists in certainnovel features of construction, combination and arrangement of parts tobe hereinafter more fully described and claimed.

For a complete understanding of our invention,

reference is to be had to the following description and accompanyingdrawing, in which Figure 1 is a perspective view illustrating a cuttingtool constructed in accordance with our invention.

Figure 2 is a vertical sectional view illustrating the device.

Figure 3 is a top plan view illustrating the device.

Figure 4 is a transverse sectional view taken on the line 44 of Figure2.

Figure 5 is a transverse sectional view taken on the line 55 of Figure2.

Figure 6 is a transverse sectional view taken on line 66 of Figure 2.

Referring in detail to the drawing, the numeral l indicates a work ormaterial support including a pair of relatively spaced parallel plates 2providing therebetween a knife slot. The plates 2 are integrallyconnected at one end, as shown at 4, and are further connected by asubstantially U- shaped bracket 5 located adjacent the other ends ofsaid plates. The upper edges of the plates 2 form rests for the work ormaterial 6 and the operator during the use of this device may easilyslide the work or material longitudinally as well as laterally of thesupport so that the material may be out either straight and angularly orwith or across the grain of the material. Brackets 1 are secured on theplates 2 and extend angularly therefrom to act as rests for aiding inmaintaining the support in working position, as shown in Figure 1. Aclaw or anchor 8 is pivoted on end of the support and may bite into theground or be driven into a harder material on which the support ispositioned to cooperate with the rests in preventing the support frommoving out of operative position.

Pivotally mounted on the plates 2 adjacent their integrally connectedends is a knife blade 9, the latter being pivoted at one end on theplates 2 and 5 the opposite end integral with a lever It) provided witha hand grip l I. The knife blade is arcuately curved from end to endhaving the convexed edge A thereof acting as the severing edge of theblade. The blade tapers from its working edge towards 10 its non-workengaging edge or concaved edge and may have its side faces hollow groundas suggested in Figures 5' and 6 of the drawing, also, the work engagingedge may be hollow ground, as shown in said Figures 5 and 6. The bladefrom its pivoted 15 end gradually increases in thickness towards itsopposite end or the end carrying the lever H). The blade is capable ofmoving between the plates 2 of the support and with the work positionedon the latter and the blade brought into engagement therewith thematerial will be efficiently cut or severed either in a straight path orin a curved path, depending in which direction the operator moves thework or material over the support. The material being severed by theblade while resting on the support will assure against breaking theparts of the material cut, consequently reducing waste to a minimum. Thedevice can also be employed for trimming edges of the work or material 6so as to obtain a desired or selected shape 30 to the material.

A punch I2 is mounted on the lever I0 and the bracket 5 has an openingl3 in which the punch may be moved. Whenever it is desired to punchholes in the work or material the latter is placed 5 over the bracket 5on the support and the lever moved downwardly forcing the punch l2through the material into the opening of the bracket.

The device described and shown in the drawing is of such a constructionthat it can be con- 40 veniently carried by a workman and when neededfor use can be easily set up on a roof or like place for the purpose ofcutting material in parts either with or angularly to the grain of thematerial and for shaping the material as desired and also 45 forpunching holes therein. This device has been found especially useful inthe cutting of shingles or other roofing material, however, it may besuccessfully employed for cutting any other kind of materials.

What is claimed is:

1. A cutting tool comprising an elongated support including relativelyspaced parallel plates integrally connected at one end and definingtherebetween a knife slot and adapted to have 55 material rested uponthe upper edges of said plates, a knife blade having one end pivoted onsaid plates adjacent their integrally connected ends and adapted to movein between said plates for severing the material supported thereby andincluding a lever integral with its non-pivoted end and provided with ahand grip, said blade being arcuately curved subsantially from end toend with its convexed edge disposed for leading movement into the knifeslot, said blade tapering in width from its leading edge towards itstrailing edge and having its convexed edge hollow ground and its sidefaces hollow ground, a substantially U-shaped bracket connecting saidplates and having a punch opening and a punch secured to said lever,angle brackets secured on said plates and acting as rests to aid insupporting said plates on a surface, and an anchor pivoted on saidplates to bite into the surface and cooperating with the rests inpreventing relative movement of the support on the rests.

2. A slate cutting tool comprising a support embodying spaced parallelplates defining a knife slot therebetween and adapted to hold on theirupper edges the material to be cut, and a knife blade of arcuate formpivoted at one end between said plates adjacent one end thereof, theknife blade being of cross-sectionally tapering form with the wider edgeconstituting the cutting edge which is on the outside of the arc, thecutting edge progressively increasing in width from the pivoted end ofthe blade to the opposite end thereof.

3. A slate cutting tool comprising a support embodying spaced parallelplates defining a knife slot therebetween and adapted to hold on theirupper edges the material to be cut, and a knife blade of arouate formpivoted at one end between said plates adjacent one end thereof, the A

